Portal 2
gameappid 620 · released Apr 18, 2011
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
Price
$9.99
Lowest ever
$9.99
Players now
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24h peak
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All-time peak
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Reviews
99%of 466,556
Concurrent players
Sampled roughly every 15 minutes and aggregated on read.
No player samples recorded in this range yet. Watchlisted and top-ranked apps are polled most often.